Agilent/Keysight E4402B

The Agilent/Keysight E4402B is a mid-performance spectrum analyzer from the ESA-E series, delivering RF and microwave signal analysis across 9 kHz to 3.0 GHz with optional DC coupling down to 100 Hz. Engineered for R&D, manufacturing, and field service environments, this analyzer combines measurement speed—45 updates per second to display and over GPIB—with flexible resolution bandwidth options from 1 kHz to 5 MHz (standard) or 10 Hz to 5 MHz with Option 1DR. The 7-inch color TFT LCD display and one-button measurement solutions streamline workflow without sacrificing depth. Dynamic range reaches 99 dB third-order and 90 dB second-order, while displayed average noise level of -136 dBm (1 GHz) or -153 dBm with preamplifier enables detection of weak signals. Maximum input handling spans +30 dBm continuous average power and +50 dBm peak pulse power. Sweep configuration operates from 1 ms to 4000 s with variable trace points from 101 to 8192, supporting both fast transient capture and precision spectral mapping. Frequency accuracy of ±101 Hz and phase noise of -100 dBc/Hz at 10 kHz offset meet demanding metrology requirements. Standard 50 Ω input impedance with optional 75 Ω support (Option 1DP) accommodates diverse measurement scenarios. Built-in GPIB, RS-232, USB, and LAN interfaces enable remote operation and system integration across test floors.